Across
- 5. an area made up of air
- 6. a sudden violent shaking of the earth
- 9. the theory that all the continents were one
- 10. the thin and solid outermost layer of the earth
Down
- 1. an area filled with life
- 2. these can cause earthquakes and volcanoes
- 3. continents as one single landmass
- 4. a place where the tectonic plates touch
- 7. an area made up of water
- 8. an are made up of earth